The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Dec. 13, 2011
Filed:
May. 27, 2009
Kok-hiong Kee, St. Louis, MO (US);
Ruben Huerta-ochoa, O'Fallon, MO (US);
Jinmin HU, Belleville, IL (US);
Kok-Hiong Kee, St. Louis, MO (US);
Ruben Huerta-Ochoa, O'Fallon, MO (US);
Jinmin Hu, Belleville, IL (US);
Emerson Electric Co., St. Louis, MO (US);
Abstract
A flow valve is provided that comprises a valve chamber including first and second valve port openings in communication with first and second inlet/outlets. The valve further includes a shaft rotatably disposed in the valve chamber, and a first valve plate rotatably coupled to the shaft that is disposed in the valve chamber over the first valve port opening. The first valve plate has a first tapered slot positioned therein so as to align with the first valve port opening. The first valve plate is configured to rotate from its closed position covering the first valve port opening to an open position, where rotation of the first valve plate adjustably positions a wider or narrower portion of the first tapered slot over the first valve port opening. The valve further includes a second valve plate that is configured to rotate with the first valve plate, and to cover the second valve port opening.